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As is known to all, at present most of semiconductor materials are monocrystalline silicon, long-term since, our monocrystalline silicon mainly rely on imports.As single crystal businesses constantly breakthroughs on cost control and product conversion rate, and the application of single crystal in the distributed photovoltaic power generation, the future single crystal is expected to achieve the counter attack of polycrystalline.The following is a current situation of the development of single crystal silicon industry of our country is analyzed.
V power station built more more, how to reduce the degree of electricity cost has been a focus of industry, has also become power station owners priority issues, photovoltaic conversion efficiency is the core of the degree of electricity cost reduction factors.More and more power plant owners and the owners of the photovoltaic power station to focus on photovoltaic power station in the power generation efficiency and KWH cost of the project, for the single crystal silicon cell components of strong rotary created a favorable environment for development.
Component is monocrystalline silicon and polycrystalline silicon solar pv silicon two technical routes, with different lattice arrangement is divided into monocrystalline and polycrystalline.Industry in the common view, monocrystalline silicon with the advantages of high capacity, but the cost is high.However, the latest figures show that both power station integrated construction costs nearly equal, and, in the later operational aspect, monocrystalline silicon has a certain advantage.Because of the structure of the single crystal is a single, so more perfect crystal structure, polycrystalline structure is an amalgam of thousands of single crystal.From the crystal quality, the industry technical personnel is very clear, dislocation density and impurity content, the level of single crystal is better than that of polycrystalline.The czochralski silicon single crystal crystal quality is better than that of ingot casting polycrystalline, determines the single crystal cell conversion efficiency advantages.And in terms of quality of power station, power more than 30 years practice, the single crystal is the only long-term validation of technical route.
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